diff options
| author | Fabio Estevam <festevam@gmail.com> | 2011-04-09 10:43:24 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-05-11 23:03:15 +0200 |
| commit | e53bcd947daaf6d6c05c545ddb734cb89fc40772 (patch) | |
| tree | 0c4136f3a0a39b48a556577fdf6888f811c0c348 | |
| parent | b73850f7644db4f4c68f6efda43928a5be5a8534 (diff) | |
gpio: imx: Fix return value on error
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
| -rw-r--r-- | drivers/gpio/mxc_gpio.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpio/mxc_gpio.c b/drivers/gpio/mxc_gpio.c index 103786209c..6efbb02c16 100644 --- a/drivers/gpio/mxc_gpio.c +++ b/drivers/gpio/mxc_gpio.c @@ -24,6 +24,7 @@ #include <asm/arch/imx-regs.h> #include <asm/io.h> #include <mxc_gpio.h> +#include <errno.h> /* GPIO port description */ static unsigned long gpio_ports[] = { @@ -47,7 +48,7 @@ int mxc_gpio_direction(unsigned int gpio, enum mxc_gpio_direction direction) u32 l; if (port >= ARRAY_SIZE(gpio_ports)) - return 1; + return -EINVAL; gpio &= 0x1f; @@ -95,7 +96,7 @@ int mxc_gpio_get(unsigned int gpio) u32 l; if (port >= ARRAY_SIZE(gpio_ports)) - return -1; + return -EINVAL; gpio &= 0x1f; |